[PDFBOX-5696] COSStream lost, becomes a COSDictionary

• Type: Bug
• Status: Closed
• Priority: Critical
• Resolution: Fixed
• Affects Version/s: 3.0.0 PDFBox
• Fix Version/s: 3.0.1 PDFBox, 4.0.0
• Assignee: Andreas Lehmkühler
• Reporter: Tilman Hausherr
• Created: 07/Oct/23 10:43
• Updated: 30/Nov/23 21:19
• Resolved: 14/Oct/23 09:08

Description

This is reduced from the example presented by Pados Attila on the mailing list

public static void main(String[] args) throws IOException
{
    InputStream resourceAsStream = NewClass.class.getResourceAsStream("/pdf/TemplateTank.pdf");
    try (PDDocument a1doc = Loader.loadPDF(new RandomAccessReadBuffer(resourceAsStream)))
    {
        PDAcroForm form = a1doc.getDocumentCatalog().getAcroForm();
        PDResources dr = form.getDefaultResources();

        form.getField("Site Name").setValue("Site Name");
        a1doc.save(new File("30-1.pdf"));

        PDFont font = PDType0Font.load(a1doc, PdfGenerator.class.getResourceAsStream("/fonts/CambriaMath.ttf"), false);
        dr.add(font);
        a1doc.save(new File("30-2.pdf"));
    }
}

The result file 30-1.pdf has "Site Name" in the rendering, the result file 30-2.pdf doesn't, because the appearance stream is now a dictionary.

(The test was done on jdk21, I didn't test on another jdk)

Issue Links

• relates to: PDFBOX-5666 error encountered in splitting pdf using ver 3.0.0